First off, welcome to the family.... ^^ This is what I would do as well! Nice to meet you! Personally, I'd separate her with one other hen at a time and see who gets along and who doesn't. There is usually an instigator, find out who that is, separate them, and see if the other ladies all get along. If so, rehome the troublemaker. Always solve problems for peace within the flock!
and Welcome to Backyard Chickens.
to have you here with us. Enjoy your time here at BYC!
